Title of article :
The energetic performance of a novel hybrid solar thermal & chemical looping combustion plant
Author/Authors :
Jafarian، نويسنده , , Mehdi and Arjomandi، نويسنده , , Maziar and Nathan، نويسنده , , Graham J.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2014
Pages :
12
From page :
74
To page :
85
Abstract :
The overall energetic performance of a gas turbine combined cycle powered by a hybrid cycle between a solar thermal and a chemical looping combustion (CLC) system firing methane is reported for two configurations. In one case, the outlet from the air reactor is fed directly to a gas turbine, while in the other an after-burner, also firing methane, is added to increase the gas turbine inlet temperature. The cycle is simulated using Aspen Plus software for the average diurnal profile of normal irradiance for Port Augusta, South Australia. The first law efficiency, total solar absorption efficiency, average and peak fractional power boosts, total solar share, net solar to electrical efficiency, fraction of pressurised CO2, incremental CO2 avoidance and the exergy efficiency for both cycles are reported. The calculations predict a first law efficiency of 50.0% for the cycle employing an after-burner, compared with 44.0% for that without the after-burner. However, this is achieved at the cost of decreasing the solar share from 60.0%, without the after-burner, to 41.4% with it. Also reported is the sensitivity analysis of performance to variations in key operating parameters. The sensitivity analysis shows that further improvements to the performance of the cycle are possible.
Keywords :
chemical looping combustion , Combine cycles , Solar energy , hybrid systems , Power Generation
Journal title :
Applied Energy
Serial Year :
2014
Journal title :
Applied Energy
Record number :
1608787
Link To Document :
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